Layered within the seat base skin of the passenger seat, there is a complex contact matrix (like a foil printed circuit – looks like an aerial view of a maze) that senses if the seat is occupied (a bum on it) and in most cases with post face-lift models, also auto-senses the proximity of the MB child seat.. Nov 07, 2013 · The main 1.8t FAQ is great and allbut it isn't kept updated with all the new, great stuff people do. The user who created it won't respond to PM's and the mods won't edit it either.. 定休日 毎週日曜日＆ 第1・第3・第5月曜日 TEL 03-3251-0025 FAX 03-3256-3328 Email [email protected].